Button closure



FIG. 1 is a front perspective view of a button closure, showing my new design;

FIG. 2 is a bottom perspective view thereof;

FIG. 3 is a top view thereof;

FIG. 4 is a bottom view thereof;

FIG. 5 is a rear view thereof;

FIG. 6 is a front view thereof;

FIG. 7 is a right side view thereof; and,

FIG. 8 is a left side view thereof.

In the drawings, the broken lines illustrate portions of the button closure that forms no part of the claimed design. 

CLAIM The ornamental design for a button closure, as shown and described. 